Any1 tried only replace/restrung the broken/nearly broken individual main/cross:?)))

I only spend a few min to replace the ones broken or nearly broken n surely need own machine to do this way as you don't want to pay $20 for replacing 2 or 3 strings of main/cross, mainly within the sweet-spot n the rest almost last forever. Also the racket's still playable within the rally with 1 or 2 broken string as the previous knots stop the rest main/cross shifting:))